from django.conf import settings
from django.contrib.auth.decorators import login_required
from django.contrib import messages
from django.core.exceptions import ObjectDoesNotExist
from django.core.exceptions import ValidationError
from django.http import Http404
from django.shortcuts import get_object_or_404
from django.shortcuts import redirect
from django.shortcuts import render
from registrasion import models as rego
from registrasion.controllers.invoice import InvoiceController